Polymarket, Kalshi list measles and vaccine-mandate prediction markets; experts flag risks

Prediction platforms Polymarket and Kalshi now offer contracts on US public-health events, including measles outbreaks and state-level vaccine mandates. Experts warn these markets could distort incentives and create perverse monitoring of health crises. The development signals expansion of event-based betting into sensitive policy areas, raising regulatory and ethical questions.

AI disclosure: Model-written summary of the source, not a verified fact. Check the sources. How Mosaic works